| OS | Man Page | Section | Hits |
|---|---|---|---|
| posix | isalpha | 3p | 713 |
| linux | isalpha | 3 | 693 |
| linux | iswalpha | 3 | 666 |
| bsd | isalpha | 3 | 609 |
| freebsd | isalpha | 3 | 592 |
| netbsd | isalpha | 3 | 569 |
| xfree86 | glalphafunc | 3g | 561 |
| mojave | isalpha | 3 | 555 |
| redhat | iswalpha | 3 | 552 |
| suse | isalpha | 3 | 551 |
| redhat | isalpha | 3 | 541 |
| opensolaris | iswalpha | 3c | 524 |
| osx | isalpha | 3 | 523 |
| php | ctype_alpha | 3 | 499 |
| suse | glalphafunc | 3g | 492 |
| debian | iswalpha | 3 | 491 |
| sunos | isalpha | 3c | 490 |
| redhat | glalphafunc | 3g | 490 |
| debian | px_put_data_alpha | 3 | 487 |
| opensolaris | mlib_imagemulalpha | 3mlib | 480 |
| php | imagealphablending | 3 | 471 |
| opendarwin | iswalpha | 3 | 463 |
| linux | alphasort | 3 | 458 |
| centos | iswalpha | 3 | 455 |
| hpux | isalpha | 3c | 453 |
| opensolaris | isalpha | 3c | 440 |
| opendarwin | isalpha | 3 | 437 |
| mojave | tcl_unicharisalpha | 3 | 436 |
| debian | prelude.isalpha | 3kaya | 435 |
| x11r4 | isalpha | 3 | 431 |
| x11r4 | iswalpha | 3 | 428 |
| posix | iswalpha | 3p | 423 |
| sunos | mlib_imagemulalpha_inp | 3mlib | 422 |
| debian | px_get_data_alpha | 3 | 421 |
| v7 | iswalpha | 3 | 421 |
| opensolaris | mlib_imagedivalpha_inp | 3mlib | 420 |
| sunos | iswalpha | 3c | 419 |
| plan9 | iswalpha | 3 | 418 |
| minix | iswalpha | 3 | 418 |
| opensolaris | mlib_imagedivalpha | 3mlib | 416 |
| v7 | set_alpha_blender | 3alleg4 | 414 |
| suse | set_alpha_blender | 3alleg4 | 413 |
| centos | isalpha | 3 | 412 |
| minix | isalpha | 3 | 411 |
| freebsd | iswalpha | 3 | 406 |
| opensolaris | mlib_imagemulalpha_inp | 3mlib | 405 |
| v7 | isalpha | 3 | 404 |
| xfree86 | iswalpha | 3 | 403 |
| php | imagecolorclosestalpha | 3 | 401 |
| php | iswalpha | 3 | 398 |